Furnace Maintenance: Addressed ventor motor sound, it is getting old and showing its age, but still operational. Flushed the condensate P-trap and lines to ensure proper drainage. Inspected pressure switch tubing for functionality. Pressure switches are operating correctly. Cleaned and polished the flame sensor to optimize performance. Conducted diagnostic testing, confirming the system is operating efficiently. Suggest plug-in carbon monoxide detector for basement level. Furnace is operating well. Stay warm,